WO2004043090A1 - Procede de traitement d'informations relatives a un contrat d'abonne dans un reseau local sans fil - Google Patents

Procede de traitement d'informations relatives a un contrat d'abonne dans un reseau local sans fil Download PDF

Info

Publication number
WO2004043090A1
WO2004043090A1 PCT/CN2003/000902 CN0300902W WO2004043090A1 WO 2004043090 A1 WO2004043090 A1 WO 2004043090A1 CN 0300902 W CN0300902 W CN 0300902W WO 2004043090 A1 WO2004043090 A1 WO 2004043090A1
Authority
WO
WIPO (PCT)
Prior art keywords
user
subscription information
information
wlan
deleted
Prior art date
Application number
PCT/CN2003/000902
Other languages
English (en)
Chinese (zh)
Inventor
Wenlin Zhang
Zhiming Li
Original Assignee
Huawei Technologies Co., Ltd.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Huawei Technologies Co., Ltd. filed Critical Huawei Technologies Co., Ltd.
Priority to DE60325086T priority Critical patent/DE60325086D1/de
Priority to AU2003277467A priority patent/AU2003277467B2/en
Priority to CA002505337A priority patent/CA2505337A1/fr
Priority to EP20030810362 priority patent/EP1566063B1/fr
Priority to JP2004549025A priority patent/JP4101235B2/ja
Publication of WO2004043090A1 publication Critical patent/WO2004043090A1/fr
Priority to US11/122,297 priority patent/US20050240972A1/en

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W8/00—Network data management
    • H04W8/18—Processing of user or subscriber data, e.g. subscribed services, user preferences or user profiles; Transfer of user or subscriber data
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/24—Accounting or billing
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W84/00—Network topologies
    • H04W84/02—Hierarchically pre-organised networks, e.g. paging networks, cellular networks, WLAN [Wireless Local Area Network] or WLL [Wireless Local Loop]
    • H04W84/10—Small scale networks; Flat hierarchical networks
    • H04W84/12—WLAN [Wireless Local Area Networks]

Definitions

  • the present invention relates to a technology for processing user subscription information, and in particular, to a method for processing user subscription information in a wireless LAN user subscription information application unit.
  • Wireless local area networks As users have higher and higher requirements for wireless access rates, wireless local area networks (WLAN, Wireless Local Area Network) have emerged at the historic moment, which can provide high-speed wireless data access in a small range.
  • Wireless local area network includes a variety of different technologies.
  • IEEE 802.11b which uses the 2.4 GHz frequency band.
  • Another technology using this frequency band is Bluetooth technology.
  • Other new technologies such as IEEE 802.11a and ETSI BRAN Hiperlan2 use the 5GHz band.
  • WLANs are used to transmit Internet Protocol (IP) packet data packets.
  • IP Internet Protocol
  • the specific WLAN access technology it uses is generally transparent to the upper-layer IP. Its basic structure is to use an access point (AP) to complete the wireless access of user terminals, and form an IP transmission network through network control and connection of device connections.
  • AP access point
  • VLR Visited Location Register
  • HLR Home Location Register
  • GSM Global System for Mobile Communications
  • SGSN General Packet Radio Service Support Node
  • HLR Home Location Register
  • PURGE user data clearing function
  • WLAN wireless local area network
  • various wireless mobile communication networks such as: GSM, code division multiple access (CDMA) systems, and broadband code division multiple access (WCDMA) system, time division duplex-Synchronous Code Division Multiple Access (TD-SCDMA) system, and CDMA2000 system are becoming the focus of current research.
  • GSM code division multiple access
  • WCDMA broadband code division multiple access
  • TD-SCDMA time division duplex-Synchronous Code Division Multiple Access
  • CDMA2000 Code Division Multiple Access
  • the user terminal can be connected to the Internet (Internet) and the corporate intranet (Intranet) through the WLAN access network, and can also be connected to the main network of the 3GPP system through the WLAN access network.
  • Internet Internet
  • IP corporate intranet
  • WLAN as a wireless access technology that provides IP communication, can interact with various other network connections.
  • the user's subscription information will be managed in the subscription information storage unit, such as the home subscription user server in the 3GPP system. (HSS, Home subscriber server) / HLR management.
  • the corresponding application server such as an authentication, authorization, and accounting (AAA) server, requests and stores the subscription information storage unit until the user stops the service.
  • AAA authentication, authorization, and accounting
  • the user's subscription information application server can delete the user's related data.
  • the user's related data can be deleted immediately after the user is offline, or it can be retained for a certain period of time Deleted so that users can use it when they log in again.
  • the user's subscription information storage unit should also be notified at the same time to avoid unnecessary interaction signaling from the user's subscription information storage unit.
  • no such mechanism is proposed in the WLAN system, that is, after the information in the user subscription information application server is deleted, the user is not notified of the process of signing the information storage unit.
  • the user contract information storage unit does not know which user contract information has been deleted, and will still issue unnecessary instructions to the user contract information application server when the user contract information needs to be updated or deleted, resulting in unnecessary use of system resources. And when When the number of such signaling is large, it may also affect the normal operation of the system. Summary of the invention
  • the main purpose of the present invention is to provide a method for processing user subscription information in a wireless local area network.
  • the user subscription information storage unit it is possible to obtain the deleted information of the user subscription information in time, thereby avoiding sending redundant messages. , Thereby improving the working efficiency of the system.
  • a method for processing user subscription information in a wireless local area network is applicable to a wireless bureau-city network interactive network mainly composed of a wireless local area network user terminal, a wireless local area network access unit, a user subscription information application unit, and a user subscription information storage unit. Including the following steps: a. When the user contract information stored in the user contract information application unit of a user terminal is to be deleted, the user contract information application unit first determines whether the contract information is instructed to be deleted by the user contract information storage unit, and if it is , Delete the user's subscription information and end the process according to the instructions; otherwise, after deleting the user's subscription information, send a notification to the user's subscription information storage unit to clear the wireless LAN user information;
  • the user contract information storage unit After receiving the notification, the user contract information storage unit records the notification.
  • the record notification information is a record or a flag indicating that the user's WLAN subscription information has been deleted in the corresponding user subscription information application unit.
  • the user subscription information application unit is an authentication, authorization and accounting (AAA) server.
  • AAA authentication, authorization and accounting
  • the AAA server is a 3GPP AAA server.
  • the user subscription information storage unit is an HSS, or an HLR.
  • the method may further include: after processing the user subscription information, the user subscription information storage unit returns a response message to the user subscription information application unit.
  • deleting the user subscription information in step a is when the user terminal is disconnected from the WLAN network. Immediately after the connection is opened, delete the subscription information of the user terminal from the user subscription information application unit; or after the user terminal is disconnected from the WLAN network, the subscription information of the user terminal is retained in the user subscription information application unit for a certain period of time Delete it again.
  • the method for processing user subscription information in the wireless local area network provided by the present invention, after the user subscription information is deleted by the user subscription information application unit, promptly sends a message to notify the user subscription information storage unit, so that the user subscription information storage unit no longer sends
  • the unnecessary update or deletion of messages avoids unnecessary system resource occupation, improves the working efficiency of the system and the effectiveness of message transmission, thereby providing more convenient and diverse services for WLAN users.
  • FIG. 1 is a schematic diagram of a simplified network structure for interworking between a current WLAN and a 3GPP system
  • FIG. 2 is a schematic diagram of a network structure for implementing user subscription information management in a WLAN system
  • FIG. 4 is a schematic diagram of a network structure used in an embodiment of the present invention.
  • FIG. 5 is a signaling flowchart implemented by an embodiment of the method of the present invention. Mode of Carrying Out the Invention
  • the present invention proposes an interaction method between a user subscription information application unit and a user subscription information storage unit in a WLAN system.
  • the method provides that after the user subscription information is deleted by the user subscription information application unit, The user subscription information application unit immediately sends a notification to the user subscription information storage unit.
  • FIG. 2 is a schematic diagram of a network structure for implementing user subscription information management in a WLAN system.
  • the WLAN access unit 202 is responsible for user terminal access and routing management, so that the user terminals can communicate with each other through the IP protocol, and communicate with each other. Other IP network connection and communication It is believed that the WLAN access unit generally mainly includes an access point (AP) and an access controller (AC), and may also include a router for network connection and a related server for network control.
  • the user contract information application unit 203 is mainly responsible for managing the user's contract information. When the user accesses or uses a certain service, it judges and controls the application's user contract information and controls the access or service. Authentication, authorization, and accounting (AAA)
  • the server is a specific application example of the user subscription information application unit.
  • the user contract information storage unit 204 is configured to store contract information of all users.
  • the network stores its user subscription information in the user subscription information application unit 203 and the user subscription information storage unit 204.
  • the user contract information application unit 203 searches for itself. If there is no user contract information, the user contract information application unit 203 stores the user contract information from the user contract information.
  • the unit 204 for example, obtains and stores subscription information of the user in the HSS / HLR.
  • the user subscription information application unit 203 When the user's subscription information is deleted in the user subscription information application unit 203, if it is not the data that the user subscription information storage unit indicates to delete, the user subscription information application unit 203 sends a message to the user subscription information storage unit 204 to notify the user of the contract Some user information in the information storage unit 204 has been deleted.
  • FIG. 3 The process of notifying the user of the contract information storage unit by the user contract information application unit of the present invention that the contract information is deleted is shown in FIG. 3 and includes the following steps:
  • Steps 301 to 302 When the subscription information of a user terminal in the user subscription information application unit is to be deleted, the user subscription information application unit first determines whether the deleted user subscription information is data that the user subscription information storage unit instructs to delete. If yes, delete the user subscription information and end the process according to the instruction of the user subscription information storage unit; otherwise, after the user subscription information application unit finishes deleting the data, it sends a notification to the user contract data storage unit to clear the WLAN user information.
  • Step 303 After receiving the notification, the user contract information storage unit records the notification.
  • the record notification information may be a record or a flag indicating that the user's WLAN subscription information has been deleted in the corresponding user subscription information application unit, so that the user can reuse it when logging in again.
  • the user subscription information storage unit may further include step 304, that is, the user subscription information storage unit sends a response to clear the WLAN user information to the user subscription information application unit to indicate that the information has been deleted. Record correctly.
  • FIG. 4 and 5 are a schematic diagram of a network structure and a signaling flowchart according to a specific embodiment of the present invention. As shown in FIG. 4, this embodiment is applied to the interaction between 3GPP and WLAN.
  • a user subscription information application unit It is a 3GPP AAA server, which is responsible for user authentication, authorization, and accounting functions.
  • the user subscription information storage unit is HSS, which is responsible for storing user subscription information. Therefore, the 3GPP-WLAN interactive service network includes a WLAN user terminal, a WLAN wireless access part, a 3GPP AAA server, and a HSS, which are connected to a packet in the 3GPP network and also to the Internet.
  • the user's subscription information is downloaded from the HSS to the 3GPP AAA server.
  • These data will be deleted at a certain time, such as: when the user leaves the system and exits the WLAN; or When the user has been out of the WLAN for a certain period of time, or the system needs to delete its data for reasons such as operation and maintenance; or the administrator of the 3GPP AAA server wants to delete a user's data for management reasons, etc. Then, after the data is deleted, the 3GPP AAA server should notify the HSS.
  • this embodiment implements a process in which the 3GPP AAA server notifies the HSS user that the subscription information is deleted, as shown in FIG. 5, and includes the following steps:
  • Steps 501 to 502. When the subscription information of a user terminal in the 3GPP AAA server is to be deleted, the 3GPP AAA server first determines whether the deleted user subscription information is data instructed to be deleted by the HSS. If so, it is determined according to the HSS. Instructs to delete the user's contract information, The response information is returned to the HSS according to the specific requirements of the implementation, and then the process ends; otherwise, after the 3GPP AAA server completes the data deletion, it sends a notification to the HSS to clear the WLAN user information.
  • Step 503 After receiving the notification, the HSS records the notification in the HSS.
  • the operation of recording notification information can set a record or a flag indicating that the user's WLAN subscription information has been deleted in the corresponding user subscription information application unit, so that the user can reuse it when logging in again.
  • the HSS may further include step 504, that is, the HSS sends a response to clear the WLAN user information to the 3GPP AAA server to indicate that the information has been recorded correctly.
  • the clearing of WLAN user information notifications and responses between the 3GPP AAA server and the HSS uses existing protocols, such as: the Mobile Application Part (MAP) protocol, or the user remote dial-up authentication service (RADIUS) protocol, or DIAMETER agreement and more.
  • MAP Mobile Application Part
  • RADIUS user remote dial-up authentication service

Landscapes

  • Engineering & Computer Science (AREA)
  • Databases & Information Systems (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Small-Scale Networks (AREA)

Abstract

L'invention concerne un procédé de traitement d'informations relatives à un contrat d'abonné dans un réseau local sans fil. Ce procédé s'applique à un réseau d'échange par réseau local sans fil, comprenant un terminal abonné d'un réseau local sans fil; une unité d'accès au réseau local sans fil; une unité d'applications d'informations relatives à un contrat d'abonné; et une unité de mémoire d'informations relatives à un contrat d'abonné. Selon le procédé décrit dans cette invention, lorsque les informations relatives à un contrat de terminal abonné dans une unité d'applications d'informations relatives à un contrat d'abonné sont supprimées, l'unité de contrat détermine, dans un premier temps, si les informations sont indiquées comme étant supprimées ou non par l'unité d'informations relatives à un contrat d'abonné. Si tel est le cas, l'unité de contrat supprime ces informations et stoppe l'acheminement des données conformément aux indications; dans le cas contraire, elle supprime les informations et commande à l'unité de mémoire de supprimer les informations relatives à l'abonné au réseau local sans fil. Après réception de cette commande, l'unité de mémoire enregistre les informations de commande. Ce procédé permet à l'unité de mémoire d'obtenir, à temps, les informations que l'unité de contrat a supprimées, ce qui évite la transmission d'informations redondantes et améliore l'efficacité du fonctionnement du système.
PCT/CN2003/000902 2002-11-08 2003-10-27 Procede de traitement d'informations relatives a un contrat d'abonne dans un reseau local sans fil WO2004043090A1 (fr)

Priority Applications (6)

Application Number Priority Date Filing Date Title
DE60325086T DE60325086D1 (de) 2002-11-08 2003-10-27 Verfahren zum verarbeiten von Teilnehmer-Vertragsinformation, WLAN
AU2003277467A AU2003277467B2 (en) 2002-11-08 2003-10-27 A method of processing subscriber contract information WLAN
CA002505337A CA2505337A1 (fr) 2002-11-08 2003-10-27 Procede de traitement d'informations relatives a un contrat d'abonne dans un reseau local sans fil
EP20030810362 EP1566063B1 (fr) 2002-11-08 2003-10-27 Procédé de traitement d'informations relatives à un contrat d'abonné dans un réseau local sans fil
JP2004549025A JP4101235B2 (ja) 2002-11-08 2003-10-27 加入者契約情報ｗｌａｎの処理方法
US11/122,297 US20050240972A1 (en) 2002-11-08 2005-05-04 Method of processing subscriber contract information (WLAN)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CNB021489033A CN1248461C (zh) 2002-11-08 2002-11-08 一种无线局域网中对用户签约信息的处理方法
CN02148903.3 2002-11-08

Related Child Applications (1)

Application Number Title Priority Date Filing Date
US11/122,297 Continuation US20050240972A1 (en) 2002-11-08 2005-05-04 Method of processing subscriber contract information (WLAN)

Publications (1)

Publication Number Publication Date
WO2004043090A1 true WO2004043090A1 (fr) 2004-05-21

Family

ID=32304067

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2003/000902 WO2004043090A1 (fr) 2002-11-08 2003-10-27 Procede de traitement d'informations relatives a un contrat d'abonne dans un reseau local sans fil

Country Status (9)

Country Link
US (1) US20050240972A1 (fr)
EP (1) EP1566063B1 (fr)
JP (1) JP4101235B2 (fr)
CN (1) CN1248461C (fr)
AT (1) ATE416572T1 (fr)
AU (1) AU2003277467B2 (fr)
CA (1) CA2505337A1 (fr)
DE (1) DE60325086D1 (fr)
WO (1) WO2004043090A1 (fr)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100651716B1 (ko) * 2004-10-11 2006-12-01 한국전자통신연구원 Ｄｉａｍｅｔｅｒ 기반 프로토콜에서 모바일 네트워크의부트스트랩핑 방법 및 그 시스템
CN100450287C (zh) * 2005-06-15 2009-01-07 华为技术有限公司 一种睡眠请求消息或响应消息的处理方法
KR100905072B1 (ko) * 2007-12-18 2009-06-30 주식회사 케이티프리텔 강제 재위치 등록에 의한 도난 단말 사용 저지 방법 및시스템
EP2106094A1 (fr) * 2008-03-28 2009-09-30 Alcatel Lucent Procédé d'avertissement d'un serveur d'application de changements des données stockées sur un serveur domestique souscripteur
CN102056168A (zh) * 2009-10-28 2011-05-11 中兴通讯股份有限公司 接入方法及装置
US9912985B2 (en) * 2014-09-26 2018-03-06 Intel Corporation Content distribution

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0917320A2 (fr) * 1997-10-14 1999-05-19 Lucent Technologies Inc. Système de routage optimisé
KR20010090038A (ko) * 2001-08-21 2001-10-18 (주) 대성디지탈테크 무선랜 네트워크 시스템 및 그 운용방법
KR20020071505A (ko) * 2002-08-14 2002-09-12 주식회사 케이티프리텔 지에스엠 시스템과 씨디엠에이 서비스 시스템 간의 로밍서비스 시스템에서 ｇｓｍ 서비스 지역으로의 위치 복귀방법

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU7684094A (en) * 1993-09-24 1995-04-10 Oracle Corporation Method and apparatus for data replication
US6021327A (en) * 1997-04-15 2000-02-01 Nortel Networks Corporation Mobile communication system having improved visitor location register content management and method of operation
US5915220A (en) * 1997-05-05 1999-06-22 Northern Telecom Limited System and method for maintaining profile information in a telecommunications network
JP3049056B1 (ja) * 1998-07-02 2000-06-05 日本電気通信システム株式会社 移動体通信網の加入者デ―タ制御方法
US6427076B2 (en) * 1998-09-30 2002-07-30 Telefonaktiebolaget Lm Ericsson (Publ) Method and system for manipulating subscriber data
US6181934B1 (en) * 1998-11-13 2001-01-30 Ericsson Inc. System and method for providing efficient signaling for a positioning request and an indication of when a mobile station becomes available for location services
US6453162B1 (en) * 1998-12-10 2002-09-17 Nortel Networks Limited Method and system for subscriber provisioning of wireless services
US6731932B1 (en) * 1999-08-24 2004-05-04 Telefonaktiebolaget Lm Ericsson (Publ) Methods and systems for handling subscriber data
AU5624899A (en) * 1999-08-25 2001-03-19 Nokia Corporation Database management
US20020059299A1 (en) * 2000-07-14 2002-05-16 Frederic Spaey System and method for synchronizing databases
JP4086460B2 (ja) * 2000-11-14 2008-05-14 株式会社エヌ・ティ・ティ・ドコモ 加入者プロファイル変更方法、加入者プロファイル更新方法、移動通信システムおよび交換局
US7222192B2 (en) * 2002-01-10 2007-05-22 Tekelec Methods and systems for providing mobile location management services in a network routing node
US20040088737A1 (en) * 2002-11-04 2004-05-06 Donlan Brian Joseph Method and apparatus for removing client from an interactive TV network

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0917320A2 (fr) * 1997-10-14 1999-05-19 Lucent Technologies Inc. Système de routage optimisé
KR20010090038A (ko) * 2001-08-21 2001-10-18 (주) 대성디지탈테크 무선랜 네트워크 시스템 및 그 운용방법
KR20020071505A (ko) * 2002-08-14 2002-09-12 주식회사 케이티프리텔 지에스엠 시스템과 씨디엠에이 서비스 시스템 간의 로밍서비스 시스템에서 ｇｓｍ 서비스 지역으로의 위치 복귀방법

Also Published As

Publication number Publication date
EP1566063B1 (fr) 2008-12-03
DE60325086D1 (de) 2009-01-15
US20050240972A1 (en) 2005-10-27
EP1566063A4 (fr) 2006-08-16
CN1248461C (zh) 2006-03-29
EP1566063A1 (fr) 2005-08-24
ATE416572T1 (de) 2008-12-15
AU2003277467B2 (en) 2008-04-24
AU2003277467A1 (en) 2004-06-07
JP4101235B2 (ja) 2008-06-18
JP2006505976A (ja) 2006-02-16
CA2505337A1 (fr) 2004-05-21
CN1499777A (zh) 2004-05-26

Similar Documents

Publication Publication Date Title
US8917710B2 (en) Process method about the service connection between the wireless local area network and user terminal
US6707809B1 (en) Method for forwarding data to idle mobile nodes, and home agent control node for use in the method
EP1693988B1 (fr) Procede de selection par un terminal d'abonne de la passerelle de paquets de donnees dans un reseau local sans fil
WO2009100676A1 (fr) Procédé et dispositif pour permettre à l'équipement d'utilisateur de sélectionner un réseau
US20030171112A1 (en) Generic wlan architecture
WO2005011305A1 (fr) Procédé interactif pouvant optimiser le choix d'un terminal utilisateur d'accéder à un réseau mobile dans un wlan
JP2007524290A (ja) ワイヤレス・ローカル・エリア・ネットワーク内のサービストンネルの削除方法
WO2010012174A1 (fr) Procédé de gestion, dispositif et système permettant à un utilisateur d'accéder à un réseau
US20080310347A1 (en) Mobile communications system PDIF and method for peer detection of mobile terminal
WO2008049301A1 (fr) Procédé, appareil et système pour supporter un transfert d'équipements de terminal de radiomessagerie réseau hétérogènes
JP3931187B2 (ja) ワイヤレスローカルネットワークをｕｍｔｓ端末局に接続するための方法およびデータシステム
JP4279879B2 (ja) 無線ローカルエリアネットワークにおける頻繁なネットワーク選択の回避方法
WO2004114588A1 (fr) Procede de transmission de donnees de trafic a des utilisateurs d'un reseau local sans fil
WO2005004384A1 (fr) Procede de rejet d'alternative pour information de selection de reseau d'un terminal utilisateur dans un reseau local sans fil
US20050240972A1 (en) Method of processing subscriber contract information (WLAN)
KR20130036875A (ko) 이동통신 시스템에서 로밍 게이트웨이 서비스 방법 및 망 연동 장치
JP4357401B2 (ja) フィルタリング方法
GB2414364A (en) Routing messages between different networks
WO2006037269A1 (fr) Procede d'enregistrement de service par acces ip
KR101262344B1 (ko) 다이어미터(ｄｉａｍｅｔｅｒ) 기반의 ａａａ 인증 시스템및 그를 이용한 세션 관리 방법
WO2019095379A1 (fr) Procédé, dispositif, et support de stockage informatique pour l'activation et la désactivation d'un service
WO2006037268A1 (fr) Procede de desenregistrement de service en fonction de l'access ip
WO2021179182A1 (fr) Procédé et appareil de fermeture de données, et dispositif et support de stockage
WO2004114589A1 (fr) Procede pour transmettre des donnees de trafic a des utilisateurs d'un reseau local radio
WO2006099816A1 (fr) Procédé et système de fourniture d’informations de présence au système de présence par wlan

Legal Events

Date Code Title Description
AK Designated states

Kind code of ref document: A1

Designated state(s): AE AG AL AM AT AU AZ BA BB BG BR BY BZ CA CH CO CR CU CZ DE DK DM DZ EC EE ES FI GB GD GE GH GM HR HU ID IL IN IS JP KE KG KP KR KZ LC LK LR LS LT LU LV MA MD MG MK MN MW MX MZ NI NO NZ OM PG PH PL PT RO RU SC SD SE SG SK SL SY TJ TM TN TR TT TZ UA UG US UZ VC VN YU ZA ZM ZW

AL Designated countries for regional patents

Kind code of ref document: A1

Designated state(s): GH GM KE LS MW MZ SD SL SZ TZ UG ZM ZW AM AZ BY KG KZ MD RU TJ TM AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LU MC NL PT RO SE SI SK TR BF BJ CF CG CI CM GA GN GQ GW ML MR NE SN TD TG

121 Ep: the epo has been informed by wipo that ep was designated in this application
DFPE Request for preliminary examination filed prior to expiration of 19th month from priority date (pct application filed before 20040101)
WWE Wipo information: entry into national phase

Ref document number: 11122297

Country of ref document: US

WWE Wipo information: entry into national phase

Ref document number: 2003277467

Country of ref document: AU

WWE Wipo information: entry into national phase

Ref document number: 2505337

Country of ref document: CA

WWE Wipo information: entry into national phase

Ref document number: 2004549025

Country of ref document: JP

WWE Wipo information: entry into national phase

Ref document number: 2003810362

Country of ref document: EP

WWP Wipo information: published in national office

Ref document number: 2003810362

Country of ref document: EP